Edge-scouring machine



Aug. 19, 1930. R. J. BURNS EDGE SCOURING' MACHINE Filed Jan. 22, 1924Patented Aug. 19, 1930 I UNITED STATES ROBERT J. BURNS, on ST. LOUIS,Mrssorinr, nssreivon'ro UNITEDfSHOE AGHi-NERY CORPORATION, OF PA'rERson,NEWFERSEY, A-CORPORA'I'ION or NIEW\ YJERSEY EnGE-scoUnrne MACHINE 1Aipplicationfiled January 22, 1924. Seria1 No. 687,711. i

This invention relates to finishing rolls and is illustrated as embodiedin'a scouring roll of thesplit type provided with retaining flanges. Oneform of scouring roll whichis 5 .Well known to the trade i'sillustratedin Pat:

'ent No. 1,326,495 issuedjDe'c. 80, 1919,;upon

the application of Charles. E. Graham. In

, this form'a two-part hub having broad flanges is mounted directly uponthe shaft and forms a retaining means for the split body portion,

this body portion comprising two halves of an annulus hinged togetheratone edge and provided with transverse pins travelling in cam slotsinthe retaining flanges for holding the two" halves of thebody portionin closed position'.- Commonlyithe split body portion is made of wood,and is'covered with a thick o layer of felt around which a strip ofabrasive clot-h maybe Wound and maintained in post 20131011 untilit isso much worn that it needs .renewal As the operator rotates the bodyportion 1 'with'respect to the flanges in order toopen up the twosections of the body portions to allow the'removal and replacement ofthe strip, of abrasive cloth, the transverse pins in the body portionstravel along the cam, slots and, re-

leasing the sections of the body portions, positively cause them to openor to close, accord- 3 ingtothe direction i'n-which the body portion isrotated-relatively to the flanges. ,In order to prevent binding of thepins in the cam slots, and to insure that eachopin and slot assemblydoes its proper share of the work of opening and closing the hinged bodyand maintaining it closed, the flanges must at all times occupyapredetermined fixed position relative to each other whereby the degreeof opening or closing of the body as determined by either one of 40 thepin and slot assemblies will at all timesbe equal to the degree ofopening or closing as' determined by the other pin and slot assembly.The arrangementmust be such that'the opening andc'losing of the bodyportions will not displace'either of the flanges upon the shaft oraffect their relative position. In case body portions of differentwidths are used, it 1s necessary for the operator to unclamp one of theflanges from the shaft and move it laterally thereon'to allow theremoval of thebody portion of one width and the insertion of ansother'body portion. When? the operator moves the flange backintocoactin'g relation with the pins of the body portion," it isessential thatit shall be replaced so that the cam slotsin said flangeshall be brought into exactly opposite'relation to the cam slotsof theother flange.

One object of thepresent invention is to devise acommerciallysatisfactory scouring roll provided with means forensuring the correctalinement of the cam slots in the two flanges' I w In the illustratedembodiment ofthe in- ;vention, the shaft engaging port-ionsof the hubmembers are extended inwardly for a substantial distanceand providedwith overlapping portions jointedalong a line parallel with the axiswhereby the correct alinement of the slots in the flanges of said hubmembers may be maintained easily whenever the operator finds itnecessary to replace the body j member or substitute one of differentwidth. In the drawings,

Fig. 1 is'a side:elevation'illustrati'ng'the' members of the bodyportion in closed posi tion but not locked; 4

Fig. 2 a side elevation showing the members of the body'po rtion in openposition; and

Fig. 3 is'a front elevation ofthe arrangement shown in Fig. 1.- l

. The device is intended to be mounted upon a shaft, such as that shownat 10, and comprises a two-parthub consisting of flanges '12 and 14 andhub portions 16 and 18. Set

screwsQO in thehub portions are used for retaining thefhubsjin theirdesired relation on the shaft, and it will be seen that these hub toenterthe slots in the flanges of the hub members,.,each pin and the camportion of the slot which it enters being regarded as a pair ofco-operating cam element's. NVhen itis desired to open the body portionto renew the abrasive strip thebody member is rotated relative to theflanges and the pins are brought opposite end sections 26 and 28 in theslots. Theseend sections, it will be seen from an inspection of Fig. 2,are substantially concentric with the center of hinge 34 so that theymay allow the opening of the body portion with the greatest facility.After the ends of the striphave been engaged upon the pins 36 the twohalves of the body portion will be closed and a reverse relativerotation between the body portion andthe hub members effected to causethe pins 38 and 40 tov travel along the cam portions 24, whereby thebody portions willv be wedged tightly in position as-the pins approachthe center of the lockedand tend to fly apart due to centrifus galforce. This arrangement is'notclaimed shaft and the scouring roll willbe ready for use. The closed slots are eflectiveto prevent accidentaldetachment of the body portions from the roll in case they becomevunherein, however, as' it is claimed in United States Letters PatentNo.1,593,685, granted. July 27, 1926, upon the application of ErnestAshton, Serial No. 700,967, filed March 21, 1924, and assigned to thesame assignee.

Because of variations in width of the va rious body portions which aresupplied and because of the variations in similar'body por tions, it isnot feasible to make the hub sections 16 and 18 integral. Furthermore,such an integral construction would not allow the ready replacement ofthe body portions should breakage occur because of the necessity forentering'the pins 38 and 40 in the slots in the flanges of the hubmembers.

The problem from a practical standpoint is further complicated by theconsiderable width of the body portions employed and the fact that ifthe hub portions 16 and 18 were to be made integral with the flanges 12and 14 a very considerable amount of metal would have to be removed,thereby rendering the device unduly expensive. It has been found,however, that the arrangement may be constructed at relatively smallexpense by utilizing metal tubing for the hub portions 16 and 18 andarc-welding sections of this tubing to flange members which have beencut out of flat plates. By such an arrange ment the necessary strengthis obtained and the expense of production maintained within the desiredlimits.

Since the hub members are not integral, it is desirable to provide somemeans of insuring that they be assembled on the shaft 10 in a fixedposition circumferentially relative 'to each other, this position bemgpredeterminedby the fact that the degree of opening or closing oftheroll body determined by a :pair. of cooperating camelements on one sideof the roll body shall be equal to the degree of. opening. or closingdetermined by the pair on the opposite side of the roll body. Sincethepins 38 an eitherside of the hinged member .3 O are circumferentiallyfixedwith relation to each other, itis therefore desirable that the camportions 24 of the .slots onthe flanges 12 and 14 respectively be fixedcircumferentially with relation to each other, and to this end theoverlapping joints 22are provided on each hub member. The set screws 20are for the purpose of securing-the hub members to the shaft 10 in therelative circumferential position indicated by the overlapping joints22.

Having thus described my invention, what I claim as newand desire tosecure by Letters Patent of the'Unlted States s 2- 1. Ina scouring rollhaving hinged 'body members provided with laterally extending pins, hubmembers provided with slots cooperating with said pins, and coactingmeans upon saidhub members constructed and arranged to insure thecorrect'relationof said hub members when they are adjusted in positionupon the shaft irrespective of variations inthe widthsof the bodymembers used.

"2. In a scouring roll comprising hinged body members provided withlaterally ex- .tendinglocking pins, hubmembers having flanges with camslots designed to co-operate withand secure 1n positlon said bodymembers, saidjhub members being provided with coacting normallycontacting surfaces substantially parallel to theaxis of rotationarranged to determine the correct relation of said hub members on ashaft, and means for retaining said hub members in position upon theshaft.

3. 'A scouring rollcomprising a roll body divided into a;pair ofmembers'hingedtogether eccentrically of the axis of the body and havinga cam element upon each of the end faces of one of said hinged members,a pair of hub members eachadapted toabut I longitudinally one end ofsaid roll body and each carrying a cam element adapted to-cooperate withthe cam element on the adjacent face of said one hinged member, eachco-operating pair of said cam elements being constructed and arranged tocause opening and closing movements of said roll body upon relativerotation between said body and said hub members, interengaging memberscarried by the hub members constructed and arranged to position thehub'members relatively to each other with the cam members at one endface in the same relation to each other as the cam members at the otherend face, said interengaging members at all times positively preventingrelative circumferential movement of the hub members, and means forsecuring said hub members to a shaft in said relative position.

4. A scouring roll comprising a roll body dividedinto a pair of membershinged together eccentrically of the axis of the body and having a camelement upon each of the end faces of one of said hinged members, a pairof hub members each adapted to abut longitudinally one end of said rollbody and each carrying a cam element adapted to cooperate with the camelement on the adjacent face of saidhinged member, each co-operat ingpair of said cam elements being constructed and arranged to causeopening and closing movements of said hin ed body upon relative rotationbetween said body and said hub members co-acting means on said hub' Intestimony whereof I have signed my name to this specification.

, ROBT. J. BURNS.

